Views: 0 Author: Site Editor Publish Time: 2021-10-28 Origin: Site
A disc brake is a type of brake that uses calipers to squeeze pairs of pads onto a disc or "rotor" to create friction. This action slows the rotation of an axle, such as an axle, to reduce its speed of rotation or to keep it stationary. The energy of motion is converted into waste heat that must be dispersed.
Hydraulically actuated disc brakes are the most common brakes used on motor vehicles, but the principle of disc brakes is applicable to almost any rotating axle. These components include the brake disc, the brake master cylinder, and the caliper (containing the brake cylinder and two brake linings), located on either side of the brake disc.
Disc brakes are increasingly used on oversized and heavy-duty road vehicles, while the formerly large drum brakes have become almost universal. One reason for this is that discs lack self-assist, so braking forces are more predictable and therefore peak braking forces can be increased without creating greater braking forces or risk of steering or knife breaking on articulated vehicles. Another is that disc brakes fade less at high temperatures. In heavy-duty vehicles, air and rolling resistance and engine braking are only a small part of the total braking force, making it more difficult to use brakes with drum brakes than with lighter vehicles, where fade occurs at one stop. For these reasons, heavy trucks with disc brakes can stop at about 120% of the passenger car distance, while drum stops require about 150%.
What are the main components?
How do braking systems work?
Types of brake discs
1. Brake Discs
A brake disc is a rotating disk that rotates with the wheels. It is used as a source for converting energy into power and kinetic energy into heat. As with all the components listed here, there will be one on each wheel.
2. Brake Caliper
This is an installed device that includes an internal piston that applies pressure to the brake lining. When you depress the brake pedal pressure is generated, forcing brake fluid into the piston, which presses the brake pads against the rotor, slowing the vehicle and generating heat.
3. Brake Pads
Brake pads are wearable parts that come into contact with the brake rotor. The pressure of the brake pads on the brake rotor and the speed difference slows your car down.
4. Brake Lines
These are the lines used to supply brake fluid to the brake calipers. When you depress the brake pedal, this pressurizes the brake fluid flowing through the line to each of the four wheels, creating forceful contact between the brake pads and the brake discs.
Most braking systems are very simple. Each wheel has a brake disc, a caliper and a pair of brake linings. When you depress the brake pedal, brake fluid is pressed against the caliper, which then squeezes the brake linings against the disc, slowing the vehicle.
There are two main types of brake discs: ventilated discs and solid discs. These two types of discs are easy to distinguish if viewed from the side. If you have reasonable spacing between the spokes of your alloy wheels, you may be able to tell if the discs are solid or vented even without removing the hub. A vented brake disc is two flat discs placed together, one on top of the other, with a gap between them to allow air to flow. This helps keep the disc cool and improves braking, and extends the life of the disc. This is the case with solid-state discs, where there is no space between them.
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